Page 29 - Year 6 Maths Mastery
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Teaching for Mastery: Questions, tasks and activities to support assessment



                                         Mastery                                                            Mastery with Greater Depth

        Which of the following statements do you agree with? Explain your decisions.  Which of the following statements do you agree with? Explain your decisions.
           The value 5 satisfies the symbol sentence 3 ×    + 2 = 17                    There is a whole number that satisfies the symbol sentence 5 ×    – 3 = 42
           The value 7 satisfies the symbol sentence 3 +    × 2 = 10 +                  There is a whole number that satisfies the symbol sentence 5 +    × 3 = 42
           The value 6 solves the equation 20 – x = 10                                  There is a whole number that solves the equation 10 – x = 4x
           The value 5 solves the equation 20 ÷ x = x – 1                               There is a whole number that solves the equation 20 ÷ x = x


        I am going to buy some 10p stamps and some 11p stamps.                       I am going to buy some 11p stamps and some 17p stamps.
        I want to spend exactly 93p. Write this as a symbol sentence and find whole   I want to spend exactly 95p. Write this as a symbol sentence and find whole
        number values that satisfy your sentence.                                    number values that satisfy your sentence.
        Now tell me how many of each stamp I should buy.                             Now tell me how many of each stamp I should buy.

        I want to spend exactly £1·93 . Write this as a symbol sentence and find whole   I want to spend exactly £1·95 . Write this as a symbol sentence and find whole
        number values that satisfy your sentence.                                    number values that satisfy your sentence.
        Now tell me how many of each stamp I should buy.                             Now tell me how many of each stamp I should buy.

                                                                                     I want to spend exactly £1·59 . Write this as a symbol number sentence.
                                                                                     Can you convince yourself that you can’t find whole number values that satisfy
                                                                                     your symbol sentence?


                                                                                     Explain your reasoning.





















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       29  •  Algebra Year 6  Text © Crown Copyright 2015  Illustration and design © Oxford University Press 2015                                 www.oxfordowl.co.uk
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